/*
 * Header & Navigation — First Temple v2
 * Minimal desktop nav, fullscreen mobile overlay
 */

/* ============================================
   Site Header
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: rgba(245, 240, 235, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background-color var(--duration-base) var(--ease-out);
}

.site-header.scrolled {
  background-color: rgba(245, 240, 235, 0.95);
}

/* ============================================
   Main Navigation
   ============================================ */
.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) 0;
}

/* ============================================
   Logo — text-based with Outfit
   ============================================ */
.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-text);
  letter-spacing: var(--tracking-tight);
  z-index: calc(var(--z-overlay) + 1);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.logo:hover {
  opacity: 0.7;
  color: var(--color-text);
}

.logo img {
  height: 36px;
  width: auto;
}

@media (min-width: 1024px) {
  .logo img {
    height: 42px;
  }
}

/* ============================================
   Mobile Menu Toggle
   ============================================ */
.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: calc(var(--z-overlay) + 1);
  position: relative;
}

.mobile-menu-toggle:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 4px;
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  background-color: var(--color-text);
  height: 2px;
  width: 24px;
  transition: all var(--duration-base) var(--ease-out);
}

.hamburger {
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.hamburger::before {
  transform: translateY(-7px);
}

.hamburger::after {
  transform: translateY(7px);
}

/* X state */
.mobile-menu-toggle[aria-expanded="true"] .hamburger {
  background-color: transparent;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
  background-color: #fff;
  transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
  background-color: #fff;
  transform: rotate(-45deg);
}

/* ============================================
   Navigation Menu
   ============================================ */
.nav-menu {
  /* Mobile: fullscreen overlay */
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-6);
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg-dark);
  padding: var(--space-8);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-base) var(--ease-out),
    visibility var(--duration-base) var(--ease-out);
  z-index: var(--z-overlay);
  overflow-y: auto;
}

.nav-menu.active {
  opacity: 1;
  visibility: visible;
}

@media (min-width: 1024px) {
  .nav-menu {
    position: static;
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
    width: auto;
    height: auto;
    background-color: transparent;
    padding: 0;
    opacity: 1;
    visibility: visible;
    gap: var(--space-1);
  }
}

.nav-menu > li {
  margin-bottom: 0;
}

/* ============================================
   Navigation Links
   ============================================ */
.nav-link {
  display: block;
  padding: var(--space-3) var(--space-2);
  font-family: var(--font-accent);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  letter-spacing: var(--tracking-wide);
  transition: color var(--duration-fast) var(--ease-out);
  border-bottom: none;
}

.nav-link:hover {
  color: #fff;
}

@media (min-width: 1024px) {
  .nav-link {
    font-size: var(--text-sm);
    color: var(--color-text);
    padding: var(--space-2) var(--space-4);
    position: relative;
  }

  .nav-link:hover {
    color: var(--color-text);
  }

  /* Active underline */
  .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--space-4);
    right: var(--space-4);
    height: 2px;
    background-color: var(--color-accent);
  }
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-link);
  outline-offset: 2px;
}

/* CTA button in nav */
.nav-link--cta {
  background-color: var(--color-accent);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-none);
  font-size: var(--text-sm);
  text-align: center;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-top: var(--space-4);
}

@media (min-width: 1024px) {
  .nav-link--cta {
    margin-top: 0;
    margin-left: var(--space-4);
  }

  .nav-link--cta::after {
    display: none;
  }
}

.nav-link--cta:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
}

/* ============================================
   Dropdown Menu
   ============================================ */
.nav-dropdown {
  position: relative;
}

.nav-dropdown > button {
  width: auto;
  text-align: center;
  background: transparent;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.dropdown-icon {
  transition: transform var(--duration-fast) var(--ease-out);
}

.nav-dropdown > button[aria-expanded="true"] .dropdown-icon {
  transform: rotate(180deg);
}

.dropdown-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  padding: var(--space-4) 0;
}

.dropdown-menu.active {
  display: flex;
}

@media (min-width: 1024px) {
  .dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 200px;
    background-color: var(--color-bg-white);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2) 0;
    margin-top: 0;
  }

  /* Invisible bridge to prevent mouseleave gap */
  .nav-dropdown > button::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 8px;
  }

  /* CSS hover fallback for desktop */
  .nav-dropdown:hover .dropdown-menu {
    display: flex;
  }

  .nav-dropdown:hover > button .dropdown-icon {
    transform: rotate(180deg);
  }
}

.dropdown-menu li {
  margin-bottom: 0;
}

.dropdown-menu a {
  display: block;
  padding: var(--space-3) var(--space-5);
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  transition: color var(--duration-fast) var(--ease-out);
}

.dropdown-menu a:hover {
  color: #fff;
}

@media (min-width: 1024px) {
  .dropdown-menu a {
    color: var(--color-text);
    padding: var(--space-3) var(--space-5);
  }

  .dropdown-menu a:hover {
    color: var(--color-accent);
    background-color: var(--color-bg);
  }
}

/* ============================================
   Overlay — hidden on desktop, replaced by fullscreen nav
   ============================================ */
.nav-overlay {
  display: none;
}